| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve accuracy of a method for recording a vehicle position and azimuth in accordance with a preamble as set force in claim 1. <P>SOLUTION: This method for tracking a vehicle position (x<SB POS="POST">ref</SB>) and azimuth (H) using a dead reckoning navigation based on the speed of the front wheels (3a) and (3b), calculates an approximate steering angle δ<SB POS="POST">app</SB>and an exact steering angle δ<SB POS="POST">ex</SB>that are calculated based on the speed v and an azimuth change h of the front wheels (3a) and (3b); when a deviation from the exact steering angle δ<SB POS="POST">ex</SB>is small, tracks the vehicle position (x<SB POS="POST">ref</SB>) and the azimuth (H) using the approximate steering angle δ<SB POS="POST">app</SB>that is calculated by a simple formula; while the deviation is large, tracking the vehicle position (x<SB POS="POST">ref</SB>) and the azimuth (H) using the exact steering angle δ<SB POS="POST">ex</SB>. <P>COPYRIGHT: (C)2012,JPO&INPIT |
